27 results about "Feeding force" patented technology

The invention relates to a cutting rock-breaking mechanism and a cutting method, and the cutting rock-breaking mechanism comprises a cutter assembly which comprises a sun gear rotating around a first axis; the planet gears are arranged at intervals in the circumferential direction, and eccentric structures are arranged on the planet gears; the planet wheel mandrel is sleeved with the planet wheel and rotationally connected with the planet wheel so as to bear inertia moment and / or radial inertia force which alternately rotates around the first axis; the planet carrier is coaxial with the first axis and is fixedly connected with the planet wheel mandrel; the cutterhead frame is connected with the planet carrier; when the planet carrier alternately rotates around the first axis, the cutter head frame reciprocates along the first axis and / or alternately rotates around the first axis; when the planet carrier swings in the radial direction, the cutterhead frame swings in the radial direction in a rotating mode. And the cutter is fixedly connected with the cutter head frame and has an eccentric distance. Rock is cut and broken under the multiple actions of extrusion feeding force of the cutter, vibration impact of the cutter and radial eccentric impact rock breaking, so that the rock breaking capacity (productivity) and the rock breaking efficiency are improved, the specific energy consumption of rock breaking is reduced, and the cutter is suitable for breaking hard rock.

The invention relates to the technical field of motor shell machining, and discloses a cutting device for vibration motor shell machining, which comprises a cutting table, and further comprises an equipment box fixedly connected to the lower part of the cutting table and used for supporting the cutting table; the clamping mechanism is arranged in the equipment box and is used for clamping a machine shell; and the bottom of the cutting machine rotates around the machine shell on the cutting table through a rotating mechanism for cutting. By means of the rotating mechanism, constant initial feeding force is provided through the first tension spring, meanwhile, self-adaption of the cutting process is achieved through a one-way pawl mechanism composed of a deflector rod and a limiting hole with a rectangular bayonet, when the wall thickness is not uniform or casting defects occur, cutting counter-force can push the cutting machine to slightly retreat in the radial direction for buffering, and the cutting effect is good. And when the cutting condition is normal, the mechanism can lock and allow continuous feeding, knife pricking, tipping and even workpiece damage caused by sudden change of cutting force can be greatly avoided, and the mechanism is particularly suitable for machining characteristics of a vibration motor casting shell.

The special-shaped blank electromagnetic stirrer comprises a shell, an inductor is installed in the shell and comprises an iron core and coils, the iron core comprises a strip-shaped magnet yoke located in the shell, a plurality of magnetic poles are arranged on one side face of the magnet yoke, a plurality of coils are wound on the magnet yoke, and the coils are arranged on the side face of the magnet yoke. One end of the magnetic pole extends out of the shell, two ends of the upper bottom surface and the lower bottom surface of the magnet yoke are respectively provided with a mounting seat, and one end of each mounting seat extends out of the shell. The special-shaped blank electromagnetic stirrer can be oppositely installed on the two sides of a fan-shaped section of a special-shaped blank continuous casting machine, magnetic poles of the electromagnetic stirrer can penetrate through gaps between supporting rollers of the fan-shaped section, the magnetic poles are closer to flanges of special-shaped blanks, and therefore an effective magnetic field is close to casting blanks, the magnetic induction intensity of the casting blanks is improved, efficient traveling wave stirring is achieved, and the service life of the special-shaped blank continuous casting machine is prolonged. The feeding force of the casting blank can be improved through traveling wave stirring, the electromagnetic stirring action area is enlarged, and therefore the quality of the casting blank is improved.

A control system, rock drilling rig and method for controlling coupling measures is provided. The control system is arranged for controlling coupling and uncoupling measures of a threaded coupling of a rock drilling tool. The control system is configured to detect initial minimum feed force required for moving a rock drilling apparatus in forward direction and is configured to implement the detected minimum feed force during the coupling.

The invention relates to an intelligent self-adaptive extension device and method for a machine tool, and relates to the technical field of machine tool extension. Comprising an extension table, an anti-bending assembly is arranged in a fixing column, a pressing plate is fixed to one side of the anti-bending assembly, a centering positioning assembly is arranged in a placing table, a base is fixed to the top end of the centering positioning assembly, an adjusting assembly is arranged at the bottom of a placing plate, and a spring is fixed to one side of the adjusting assembly. The electric telescopic rod drives the moving block to slide, linear motion is converted into opposite sliding of the moving frame, then the sliding frame is pushed to drive the pressing plate to conduct opposite clamping through linkage of the rotating plate and the moving plate, vertical pressing of workpieces with different thicknesses can be adapted, cutting force, feeding force and vibration are effectively resisted, and the machining precision is improved. Warping, lifting or axial movement of the workpiece is avoided, cutting vibration marks are reduced, the surface machining quality of the workpiece is improved, and self-adaptive pressing of the workpieces with different thicknesses is achieved.

The application discloses a pile foundation sampling device for road and bridge construction and relates to the field of pile foundation sampling, which comprises a bottom plate, a drilling cylinder and a top block, the top block is located at the top end of the drilling cylinder, six plug-in grooves are uniformly arranged on the inner wall of the drilling cylinder, dehydration assemblies are inserted into the six plug-in grooves, the dehydration assemblies utilize the rotary power of the drilling cylinder and the axial feeding force of a sample core to remove water on the surface of the sample core, and the outer wall top end of the drilling cylinder is fixed with a first flange plate; a horizontal plate is movably sleeved on the outer wall of the top block through a bearing, and six arc-shaped positioning grooves are uniformly arranged on the lower surface of the top block, the application can realize simultaneous sampling and dehydration by utilizing the rotary power of the drilling cylinder and the axial feeding force of the sample core, can instantly scrape off water on the surface of the sample core and quickly pump out sewage in the drilling cylinder, so that the damage of water to the composition and structure of the sample core is avoided, and the accuracy of subsequent strength detection, composition analysis and other data is ensured.

The invention relates to the technical field of screw turning machining, in particular to bulking machine screw spindle machining equipment which comprises a machine tool, a follow rest used for assisting in supporting a workpiece is arranged on the machine tool, and a supporting mechanism used for limiting the machined face and the unmachined face of the workpiece at the same time is arranged on the follow rest. When the screw workpiece is roughly machined, the two abutting arms are used for limiting and supporting the two faces of the workpiece, so that the radial feeding force applied to the screw by a cutter can directly point to the follow rest, the supporting effect is guaranteed, and when the surface of the screw workpiece is finely machined, the workpiece can be precisely machined, and the machining precision of the workpiece is improved. The clamping wheel is controlled by the driving assembly to clamp the screw blade in a self-adaptive mode, tracking type axial limiting of the finish machining position of the cutter is achieved, position deviation of the screw due to axial pushing of the cutter in the finish machining process is effectively avoided, and the machining quality of the surface of the screw is guaranteed.

This invention relates to the field of drilling technology, specifically a quick-release drill bit for a drilling machine. It includes a connecting structure located at the bottom of the drilling machine and a drill bit structure located at the bottom of the connecting structure. The connecting structure is fixedly connected to the bottom of the drilling machine, while the drill bit structure is movably connected to the connecting structure, allowing for quick installation and removal of the drill bit structure within the connecting structure. The connecting structure includes a connecting cylinder located at the bottom of the drilling machine, which is fixedly connected to the drilling machine. A sliding cylinder is provided on the outer wall of the connecting cylinder, and the sliding cylinder is slidably connected to the outer wall of the connecting cylinder. This invention controls the radial extension and retraction of the stop block through the sliding cylinder, enabling quick locking and release of the drill rod with only one-handed push-pull operation. At the moment of drilling through the workpiece, the drill rod falls and automatically cuts off the feed force and torque, eliminating the risk of drill breakage due to a sudden increase in torque. Combined with an automatic upward sliding reset structure, it provides stable safety protection for the drill rod during continuous drilling cycles.

The automatic pencil feeding structure of the pencil sharpener comprises a mounting base and a driving part, a base through hole for the driving part to be plugged in is formed in the mounting base, a pencil hole with two through ends for a pencil to be inserted in is formed in the driving part, base inner teeth are arranged on the inner wall of the base through hole, and a flexible gear outer tooth ring is arranged in the base inner teeth in a sleeved mode. The flexible gear outer gear ring is arranged on the driving part in a sleeving mode, the driving part is sleeved with a steel wheel rotating disc, a circle of rotating disc outer teeth are arranged on the outer side face of the steel wheel rotating disc, rotating disc inner teeth connected to the flexible gear ring in a meshed mode are arranged on the inner side of the steel wheel rotating disc, two shaft rods are rotationally installed on the outer side of the installation base in parallel, and a pen skin feeding wheel and a small gear are installed on the shaft rods. The pinions are connected to the outer teeth of the rotary disc in a meshed mode, the two pinions are installed in a staggered mode, and a pencil feeding space is formed between the two pencil feeding leather wheels. The pencil feeding structure has the advantages that through simple parts, the ultrahigh reduction ratio is achieved, the pencil feeding force is reduced, abrasion to a pencil is reduced, and the service life of the pencil feeding structure is greatly prolonged.

The present application relates to the technical field of screw turning processing, in particular to a bulking machine screw spindle machining equipment, which comprises a machine tool, a follow rest for assisting in supporting a workpiece is arranged on the machine tool, a supporting mechanism for limiting the machined surface and the unprocessed surface of the workpiece at the same time is arranged on the follow rest, and an anti-channeling mechanism for axially assisting in limiting the workpiece is further arranged on the follow rest, the present application adopts double-face limiting and supporting of the workpiece by two abutting arms when the screw workpiece is rough machined, so that the radial feeding force of the cutter applied to the screw can be directly pointed to the follow rest, and the supporting effect is ensured, when the screw workpiece surface is finish machined, the driving assembly controls the self-adaptive clamping of the screw blade by the clamping wheel, the tracking type axial limitation of the cutter finish machining position is realized, the position deviation of the screw caused by the axial pushing of the cutter in the finish machining process is effectively avoided, and the machining quality of the screw surface is ensured.

This invention discloses a multi-directional force fusion sensing system for an ultrasonic drilling three-jaw chuck. The three-jaw chuck has a first base jaw slide, a second base jaw slide, and a third base jaw slide evenly distributed along its circumference. A clamping force monitoring module is detachably mounted on the first base jaw slide, an axial feed force monitoring module is detachably mounted on the second base jaw slide, and a cutting torque monitoring module is detachably mounted on the third base jaw slide. When clamping the workpiece, the workpiece clamping surface abuts against the clamping force monitoring module, the axial feed force monitoring module, and the cutting torque monitoring module. By having the three monitoring modules directly abut against the workpiece clamping surface and bottom end while the workpiece is clamped, the sensor placement is moved forward to near the machining deformation zone, shortening the force signal transmission path, avoiding high-frequency noise pollution from ultrasonic vibration on the sensor signal, improving the signal-to-noise ratio and anti-interference capability of the monitoring system, and solving the problems of low measurement accuracy and high false alarm rate caused by the long signal path and the distance of sensors from the machining area in traditional monitoring methods.

The invention discloses a pile foundation sampling device for road and bridge construction, and relates to the field of pile foundation sampling, the pile foundation sampling device comprises a bottom plate, a drill cylinder and a top block, the top block is located at the top end of the drill cylinder, six insertion grooves are uniformly formed in the inner wall of the drill cylinder, dehydration assemblies are inserted into the six insertion grooves, and the dehydration assemblies are used for dehydrating the pile foundation by using the rotating power of the drill cylinder and the axial feeding force of a sample core. A first flange plate is fixed at the top end of the outer wall of the drilling cylinder; according to the invention, sampling and dewatering can be synchronously carried out by using the rotating power of the drill cylinder and the axial feeding force of the sample core, water on the surface of the sample core can be immediately scraped, sewage in the drill cylinder can be rapidly pumped and drained, and the sampling and dewatering efficiency is improved. Therefore, the moisture is prevented from damaging the components and the structure of the sample core, and the accuracy of data such as subsequent strength detection and component analysis is ensured.

The invention relates to the technical field of gear forming equipment, and provides multi-point high-efficiency forming equipment for gear machining, the multi-point high-efficiency forming equipment for gear machining is provided with a plurality of slotting points, multi-point synchronous slotting operation of a single workpiece can be realized, the machining efficiency is further improved, meanwhile, the feeding force of a plurality of bolt points is counteracted to a certain extent, and the machining precision is improved. A clamping structure matched with a workpiece is high in centering performance, clamping precision is guaranteed to a certain degree, practicability is good, the clamping structure comprises a workbench, a clamping structure body and a cutting structure, the clamping structure body comprises an interaction frame, the interaction frame is rotationally connected to the workbench, and a first servo motor is installed at the bottom end of the workbench; the first servo motor is used for rotating driving of the interaction frame, inner supporting positioning pieces are installed at the front end and the rear end of the interaction frame, inner supporting clamping of a workpiece is achieved through the inner supporting positioning pieces, a lifting structure is installed on the workbench and matched with the inner supporting positioning pieces, the cutting structure comprises a portal frame, and the portal frame is fixedly connected to the top end of the workbench.

This utility model relates to the technical field of steel plate processing equipment, and in particular to an automatic feeding mechanism for stainless steel plate processing. It includes a base, a horizontal adjustment mechanism on the top of the base, two movable plates on the horizontal adjustment mechanism, a conveying mechanism on each movable plate, a support between the two conveying mechanisms, a lifting mechanism on the support, lifting plates on both sides of the support, and adjustment mechanisms on each lifting plate. Limiting mechanisms are also provided on the movable plates. This utility model has a simple structure, effectively preventing skewing and slippage of stainless steel strips during conveying, improving conveying accuracy and stability. It can adaptively adjust the conveying speed according to different specifications and weights of strips, ensuring efficient operation of the production line. It can automatically adjust the conveying method and feeding force according to the size, shape, and weight of the strip, reducing manual intervention, significantly improving production efficiency, and shortening the production cycle.

The invention belongs to the technical field of composite pipe connection, and discloses an automatic welding system for composite pipes. Comprising a bracket, a welding machine, an electric melting sleeve, a first mounting device, a laser transmitter, a second mounting device, a four-quadrant laser detector and an industrial personal computer, wherein the first mounting device is mounted at the end part of the electric melting sleeve or the composite pipe; the laser transmitter is arranged on the first mounting device; the second mounting device is mounted at the end part of the composite pipe; the device has the following advantages and effects that through the laser transmitter and the four-quadrant laser detector, in the socket operation of the electric melting sleeve and the composite pipe, a laser beam transmitted by the laser transmitter serves as a space reference axis, the four-quadrant laser detector senses and recognizes the offset distance and the direction, and the precision of the socket operation is improved. The industrial personal computer controls a voice coil linear motor and a knocking block in the pipe fitting knocking device to act and correct knocking force and knocking positions, meanwhile, the pipe fitting knocking device continuously provides feeding force, original manual blind knocking of workers is changed into controllable precision assembly, and the coaxiality of the two welded composite pipes is remarkably improved.

The utility model discloses a drill rod and an underground drill rig with the same. The drill rod comprises a rod body and a plurality of blade sets, the blade sets are arranged at intervals in the axial direction of the rod body, each blade set comprises a plurality of blades arranged at intervals in the circumferential direction of the rod body, and the blades are connected with the rod body. The drill rod provided by the embodiment of the utility model is suitable for the underground drill rig, and the plurality of blade groups are arranged, so that the drill rod can drill along a preset track in the drilling process, and the drill rod and a drill bit are always kept in a straight line; therefore, the probability of drilling deviation caused by factors such as the weight of the drill bit, the change of geological conditions, the change of feeding force and the like is reduced.

The invention relates to a band-saw blade (32). The band-saw blade (32) has a tooth (2a) which has a cutting edge (10a) having a main cutting edge portion (18a) and secondary cutting edge portions (19a, 20a) which are arranged on both sides of the main cutting edge portion (18a). The tooth (2a) has a flank (14) which has a main cutting flank (23a) and secondary cutting flanks (24a, 25a) which are arranged on both sides of the main cutting flank. A main cutting edge clearance angle of the main cutting edge flank (23a) is smaller than at least one secondary cutting edge clearance angle of a secondary cutting edge flank (24a, 25a). The lateral extent (33a) of the main cutting edge flank (23a) becomes smaller as the distance from the main cutting edge portion (18a) increases. By means of the design according to the invention, an increase in the feed force caused by wear can be reduced and / or a sawing performance of the band-saw blade (32) can be maintained for an increased service life.

The application relates to an in-hole maintenance tool. The in-hole maintenance tool comprises a polishing mechanism and a recycling mechanism. The polishing mechanism comprises a feeding assembly and a polishing assembly. The feeding assembly is drivingly connected with the polishing assembly. The feeding assembly provides the polishing assembly with a feeding force for abutting against a to-be-polished part. The polishing assembly is used for polishing the to-be-polished part. The recycling mechanism is integrated with the polishing mechanism. The recycling mechanism comprises a recycling dish, a dust suction transmission pipe and a dust suction driving part. One end of the recycling dish is connected with the dust suction transmission pipe. The other end of the recycling dish is connected with the dust suction driving part. The dust suction transmission pipe is provided with a dust suction port. The dust suction port is close to the polishing assembly. The dust suction driving part is used for generating suction force. In this way, the debris is recycled into the recycling dish through the dust suction port and the dust suction transmission pipe in sequence. Through the above arrangement, the efficiency of the strong removal work of the silver gasket is improved. The safety of the strong removal work is ensured. The repair of the sealing surface is facilitated. And the debris pollution is avoided.

The invention discloses a posture self-adaptive constant-force grinding device based on macro-micro cooperation and elastic compensation. Comprising a base platform, a magnetic suspension micro-motion unit, an elastic compensation unit, a six-dimensional force sensor, a middle floating platform and a macro-motion posture adjusting mechanism, wherein the elastic compensation unit is configured to provide elastic tension pointing to the direction deviating from a workpiece; the middle floating platform is positioned above the magnetic suspension micro-motion unit; the macro-motion posture adjusting mechanism is used for realizing axial large-stroke stretching and deflection posture adjusting movement relative to the middle floating platform; the magnetic suspension micro-motion unit comprises a magnetic suspension stator fixed on the base platform, a magnetic suspension rotor fixed on the middle floating platform, and an electromagnetic driving assembly; the electromagnetic attraction force between the stator and the rotor is configured as an active control variable; the linear stiffness coefficient of the elastic compensation unit is configured to be larger than the absolute value of the displacement negative stiffness coefficient at the preset balance air gap of the electromagnetic driving assembly. In an inverted or lateral posture, the device can still generate stable feeding force by means of electromagnetic attraction, and the adaptability is extremely high.

The application provides a gas bearing spindle measurement system, which comprises a base, a feeding mechanism mounted on the base and used for carrying a spindle to be measured and applying a feeding force to the spindle, a feeding displacement measurement mechanism mounted on the feeding mechanism and connected to the spindle, the feeding displacement measurement mechanism being used for measuring a value of the feeding force applied by the feeding mechanism to the spindle and measuring a displacement amount of the spindle under the feeding force, and a torque measurement mechanism mounted on the base and supporting the spindle from below, the torque measurement mechanism being used for applying a braking force to the spindle and measuring a torque of the spindle under the braking force. The gas bearing spindle measurement system provided by the application can simultaneously measure multiple indexes of the gas bearing spindle, such as a bearing force, a gas film displacement amount, a stiffness and a torque, so that the measurement efficiency of the gas bearing spindle is improved and the measurement cost is reduced.

This invention provides a semi-automatic board loading machine, belonging to the field of wood rotary cutting processing. It includes a frame on which a board loading mechanism and a lifting and loading assembly are mounted. The invention utilizes a board loading mechanism powered by a first reduction motor. A first power sprocket drives the transmission sprocket of a first board loading roller via a transmission chain. The first and second board loading rollers are arranged parallel to each other vertically. The transmission sprocket of the second board loading roller meshes with the transmission chain at a 65° angle, enabling the two rollers to rotate synchronously in opposite directions, forming a power structure for clamping and feeding material. A guiding assembly assists in smoothly guiding the material plate between the rollers to complete the board loading and conveying process. The parallel rollers, working in coordination with the angled meshing, provide uniform feeding force and stable operation, ensuring smooth clamping of the conveyed material plate and preventing slippage or deviation. A single motor drives two rollers, resulting in a compact structure, low energy consumption, and suitability for continuous semi-automatic board loading operations, with high transmission reliability.

This disclosure relates to a drilling apparatus (100) comprising: a feed frame, a rod retainer (101) for holding a drill string (103) in a fixed position, and a chuck (111) for clamping the drill string, the chuck being movable relative to the rod retainer along the feed frame to allow longitudinal movement of the clamped drill string; and a hydraulic booster (120) configured to push the chuck via a pusher member (125). The drilling apparatus is configured to, during drill string retrieval: clamp the drill string via the chuck and release the drill string from the rod retainer; apply a feed force via the feed frame to pull the clamped drill string; detect insufficient feed force applied via the chuck; and, in response, control the booster to push the chuck.

The utility model relates to a rotating shaft pipe machining technical field, and specifically is a punch for rotating shaft pipe trepanning machining, including base, servo motor and electric push rod, one end of base top is installed with servo motor, the upper end of servo motor is provided with rotary table, and the top of rotary table is fixed with rotating shaft pipe, the other end of base top is installed with electric push rod, and the output of electric push rod is connected with no. The utility model discloses have the function of providing the feeding force for the trepanning part, and can carry out the location, orientation to the trepanning part, and the trepanning effect is better, is suitable for widely using.

This invention discloses a multi-unit automatic self-tapping screw fastening production line, comprising a frame, a circulating conveying system, a feeding unit, a CCD vision positioning unit, and at least one fastening unit. The fastening unit includes a fastening drive mechanism and a fastening execution mechanism. The fastening execution mechanism includes a guide preload mechanism, an axial floating mechanism, and a bit assembly. The guide preload mechanism is used for screw centering and workpiece preload. The axial floating mechanism employs a nonlinear variable stiffness elastomer to dynamically adjust the axial feed force. The control system controls the motion path based on CCD vision positioning, synchronously collects torque and displacement data, constructs the fastening quality characteristic parameter K = dT / dS, and determines the fastening state in real time through a torque-displacement weighted fusion index Q, achieving stripped threads and floating lock identification. The production line also includes multi-unit dynamic task scheduling, bit wear detection and life prediction, adaptive parameter adjustment, and a remote monitoring and traceability platform. This invention improves fastening quality and production efficiency.

This specification discloses an active feeding system for a bag-making machine. The bag-making machine includes a feeding motor that provides periodic feeding force. The system includes an active feeding unit, a temporary storage unit, and a tension monitoring unit. The active feeding unit pulls material from outside the system at a preset feeding speed. The temporary storage unit includes a movable roller around which the material enters the system, a drive component that drives the movable roller to move along a defined trajectory to change the material path length, and a control module. The tension monitoring unit monitors the tension of the material inside the system in real time and outputs monitoring information. The control module outputs control signals to the drive component based on the rotational speed of the feeding motor, the preset feeding speed, and the monitoring information, so as to keep the tension of the material inside the system stable. Through the feedforward and feedback control of the control module, high-precision active control of material tension is achieved, thereby adapting to easily stretchable environmentally friendly materials and increasing production speed while ensuring product quality.

The trephine device comprises a saw head, a trephine column body, a driving part and a protective sleeve, the trephine column body is arranged in the protective sleeve in a penetrating mode, the saw head is arranged at the bottom end of the trephine column body, the driving part is connected with the trephine column body, a mounting frame is arranged at the top end of the protective sleeve, a feeding sleeve is arranged on the mounting frame, and the trephine column body is connected with the feeding sleeve. The trephine column body is arranged in the feeding sleeve in a penetrating mode, a handle is arranged on one side of the installation frame, a trigger is hinged to the handle, the feeding sleeve is sleeved with a pushing piece, one end of the trigger abuts against the pushing piece, the feeding sleeve is sleeved with a first spring and a second spring, a non-return piece is hinged to the top of the installation frame, and the feeding sleeve is sleeved with the middle of the non-return piece. The trigger is pulled by fingers to drive the feeding sleeve to slide downwards, the trephine column body is driven to move axially, the saw head extends out of the protection sleeve, and continuous micro-feeding cutting is achieved; and the feeding sleeve cannot freely return through the non-return piece, so that the problems that the feeding force of a traditional trephine is difficult to control and the traditional trephine is easy to return are effectively solved.

The utility model relates to the technical field of drilling equipment, and discloses a drill rod orienting device which comprises a drill rod, at least two sets of straightness keeping structures are arranged on the rod wall of the drill rod, and the straightness keeping structures are arranged on the drill rod. Each straightness maintaining structure comprises a plurality of blades fixed to the outer wall of the drill rod, and the blades of each straightness maintaining structure are annularly distributed along the outer wall of the drill rod. According to the invention, the edges of the blades are in contact with the wall of a drill hole, so that the drill rod is supported, the straightness of the drill rod and the drill bit is kept, and the phenomenon of drill hole deviation caused by the change of the weight of the drill bit, geological conditions, feeding force and the like is avoided; and more than two groups of supporting structures form a double-insurance mechanism, so that the drill rod and a drill bit are always kept in a straight line in the drilling process of the drill rod, and the problem of deviation of the drill rod in the construction process is well solved.